package topicPublish;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

/**
 * <br>
 * 版权: Copyright (c) 2011-2018<br>
 * 公司: 活力天汇<br>
 *
 * @author: 刘德咏<br>
 * @date: 2018-05-16<br>
 */
public class ReceiveLogTopic {

    public static final String EXCHANGE_NAME = "topic_logs";
    public static void main(String[] args) throws IOException, TimeoutException {
        ConnectionFactory factory = new ConnectionFactory();
        factory.setHost("localhost");
        Connection connection = factory.newConnection();
        Channel channel = connection.createChannel();

        channel.exchangeDeclare(EXCHANGE_NAME, BuiltinExchangeType.TOPIC);
        String queueName = channel.queueDeclare().getQueue();
        // # 接受所有
        // kern.* 接受 kern.开头的消息
        if (args.length < 1) {
            System.err.println("Usage: ReceiveLogsTopic [binding_key]...");
            System.exit(1);
        }
        for (String bindingKey : args) {
            channel.queueBind(queueName, EXCHANGE_NAME, bindingKey);
        }
        System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
        Consumer consumer = new DefaultConsumer(channel) {
            @Override
            public void handleDelivery(String consumerTag, Envelope envelope,
                                       AMQP.BasicProperties properties, byte[] body) throws IOException {
                String message = new String(body, "UTF-8");
                System.out.println(" [x] Received '" + envelope.getRoutingKey() + "':'" + message + "'");
            }
        };
        channel.basicConsume(queueName, true, consumer);

    }
}
